Description
Fireye 45UV5-1101 Product Introduction
- Model: 45UV5-1101
- Brand: Fireye
- Series: 45UV5 Series
- Core Function: UV flame detection & self-check safety
- Type: UV Flame Scanner
- Key Specs: 1″ BSP mount, 50 Hz, UV-eye detector
- Supply Status: in stock
- Stock: 11
- Warranty: 1 year
- Ship From: China
? Core Technical Highlights
| Parameter | Detail |
|---|---|
| Detector Type | Sealed UV-eye tube (gas-filled, dual-electrode)Fireye |
| Optical Spec | UV spectrum filtering (sunlight rejection) |
| Mount Interface | 1″ BSP threaded (field-installable) |
| Frequency Rating | 50 Hz operation (compatible with 25SU3/25SU5 amps) |
| Environmental | IP65 rating, -40°C to 85°C operating temp |
| Power | 5 W typical consumption |
1. Applicable System
Designed for Fireye flame safeguard systems. Works with 25SU3/25SU5 amplifier platforms and controls like Flame-Monitor™, BurnerLogix™, and D-SeriesFireye. Integrates into single-burner boiler, process oven, and heater control loops.
2. System Role
Provides continuous UV flame presence detection. Enables safe ignition, confirms stable combustion, and triggers immediate shutdown on flame loss. Supports predictive safety and reduces unplanned downtime in industrial combustion systems.
3. Working Principle
- Uses a UV-sensitive sealed tube with AC-excited electrodesFireye.
- UV radiation from flame ionizes tube gas, causing electron avalanche (current pulse).
- Pulses are shaped, filtered, and compared to sensitivity thresholdsFireye.
- Self-check routine validates detector health during shutdown cycles.
- Loss of valid pulses triggers flame failure response (FFRT 1–4 seconds)Fireye.
4. Physical Parameters
- Dimensions: 145 × 80 × 45 mm (compact form factor)
- Weight: 0.5 kg (lightweight for easy mounting)
- Enclosure: IP65 rated (dust/water resistant)
- Mounting: 1″ BSP threaded (direct insertion into combustion chamber)
- Insulation: High-voltage isolation for safe operation near high-temp components
5. Application Industries
- Power Generation: Boiler combustion monitoring in thermal plants
- Oil & Gas: Process heaters and burner safety systems
- Refining: Furnace and heater control in hydrocarbon processingFireye
- Industrial Boilers: Steam generation for manufacturing processes
- Waste Heat Recovery: Combustion stability in energy recovery systemsFireye
6. Technical Usage Notes
- Installation: Align sensor with flame envelope; avoid direct impingement. Use heat-resistant cabling for high-temp zones.
- Wiring: Connect to 25SU3/25SU5 amplifier per Fireye CU-22 diagram; use shielded wire to reduce EMIFireye.
- Calibration: Set sensitivity via amplifier controls; match detector type to fuel type (gas/oil)Fireye.
- Maintenance: Inspect lens for deposits quarterly; test self-check function during shutdown. Replace unit if pulse output is erratic.
- Safety: Adhere to NFPA 85 standards for burner control; power down before servicingFireye.
7. Key Advantages
- Self-Checking: Continuous health verification for compliance with safety standards.
- Sunlight Rejection: UV spectrum filtering prevents false alarms in outdoor/well-lit environments.
- Rapid Response: Fast pulse detection for critical ignition and shutdown sequences.
- Proven Reliability: Field-tested for harsh industrial conditions (vibration, temperature, humidity).

